No more hatching allowed in my flock. Just had to discourage a persistent broody who probably would have liked to hatch out 13 or so roosters if she was given the opportunity.
Ocular Marek’s can occur without the other symptoms of paralysis or tumors. The other chickens may not show signs if they’re vaccinated even if they’re exposed to the virus.
The leg paralysis and blindness forms of Marek’s sometimes take a long time to progress to the fatal stage and meanwhile the sick chicken keeps shedding the virus on the other chickens in the feather dandruff. Vitamins don’t help with Marek’s but they can help if the paralysis isn’t caused by...